Oil-burner.



E. W. DISCHER.

OIL BURNER.

APPLICATION nLED MAY 20. 1916.

Patented De@.`19, 1916.

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c u. u, m c m H u w a A u. u a N P w s R E n P A n n N e N f i To all whom t may concern.'

EDWARD WILLIAM DISCHER, 0F SEATTLE, WASHINGTON.

OIL-BURNER.

Specification of Letters Patent.

Patented Dec. 19, 1916.

Application led May 20, 1916. Serial No. 98,850.

Be it known that I, EDWARD VILLIAM Discman, a citizen of the United States, residing at Seattle, in the county of King and State of Washington, have invented a new and useful Improvement in Oil-Burners, of which the following is a specication.

My invention relates to improvements in burners of the form that are used for burning crude oil and in which steam or compressed air, or both, s mixed with the oil to atomize and gasify the oil and spray it from a nozzle into a combustion chamber.

The objects of my invention are: first, to construct a burner that will do away with all vibration and noise and that may be used successfully with either steam or compressed air, or both, under a pressure varying from a minimum of five pounds to as much more than ve pounds as may be necessary to produce the amount of heat desired; second, to construct a burner wherein the fuel is thoroughly atomized and gasified and is mixed with the correct proportion of air or steam before passing to the combustion chamber, thereby insuring perfect combustion, preventing all accumulations of carbon, producv ing practically no smoke, and preventing back firing in the burner; and, third, to construct a burner that is simple in operation so that a person unskilled in the use of oil burners can handle it safely and efficiently.l I attain these objects by mechanism illustrated in the accompanying drawings in which-- Figure 1 is a view in longitudinal mid-section of the burner, certain parts being shown in elevation; Fig. 2 is a view in cross section A substantially on broken line 2, 2 of Fig. 1;

Fig. 3 is a view in elevation of the burner nozzle; and Fig. 4 is a view in cross section on broken line 4, 4 ofFig. 1.

Referring to `the drawings, throughout which like reference numerals indicate likeV parts, the numeral 5 indicates a casing having an internal chamber 6 and provided with an integral elbow member 7 disposed within the casing 6 and adapted to be connected with an oil or fuel supply pipe 8, see Fig. 2.

9 is an air or steam inlet pipe threaded into the end of the casing 5 and communicating with the chamber 6.

10 is a pipe that is connected with the casi ing 5 opposite the pipe 9, and communicates with `the chamber 6 in alinement with the discharge end of the elbow member 7, and 11 is a smaller fuelpipe that is disposed to extend axially within the pipe 10 and is screwed into the end of the elbow member 7 to establish communication with the oil supply plpe 8, the pipe 10 being open at its outer end and preferably having an annular rin v12 provided thereon flush with the end thereof, the ring 12 serving to prevent the inrushing steam or air from closing in abruptly around the end of the pipe 11 and cutting o' the flow of fuel which is discharged from the pipe 10 under practically no pressure.

13 is a nozzle having an annular chamber 14 therein and adapted to be screwed onto the outer end of the pipe 10, and 15 is a solid rod that is secured to the nozzle 18, as by screwing it into the wall of the nozzle, and extends axially within the pipe 10 as shown in Figs. 1 and 2.

16 is a hexagonal nut secured on the inner end of the rod 15, and 17 is an annular washer adjustably secured on the rod 15, as

rby screwing it onto a thread 18 approxi mately half way between the nut 16 and the end of the pipe 10.

19 is an annular washer adjustably secured on the rod l5 near the end of the pipe 10, the washer 19 being shown as screwed on a thread 2O and disposed within the chamber 14 in the nozzle 13.

The washer 17 and hexagonal nut 16 are sufficiently smaller than the inside bore of the pipe10 to leave passageways around the outer edges thereof, while the washer 19 is substantially the same diameter as the inside of the pipe 10 and is positioned a short distance from the end of such pipe within the chamber 14 to cause the fuel to issue intothe chamber 14 and impinge on the washer 19 by which it is deflected outwardly against the sides of the nozzle and is further atomized before it is emitted to feed combustion. The nozzle 13 is provided, at a point opposite and slightly above the inlet of the pipe 10, with a discharge opening 21 having the form of a horizontal slot with an inclined approach wall 22 leading to the lower edge thereof. The top wall of the chamber 14 is preferably rounded as indicated at 25.

When in use the various parts of the burner are set in substantially the positions shown in the drawings with the nozzle 13 and a porso y;

tion of the length of the pipe 10 disposed in a combustion chamber in which a fire is to be maintained. Gil under practically no pressure is admitted through the pipe 8 and is permitted to flow in` a shallow stream along the bottom of the pipe 11 and be discharged from the end thereof. At the same time steam or air under a pressure as low as five pounds per square inch may be admitted through the pipe 9 and allowed to pass in the direction indicated by the arrows A through the chamber 6 and through the pipe 10 on the outside of the pipe 11. This steam or air, as it passes around the end of the pipe 11, picks up the fuel oil that is being discharged therefrom and carries it toward the nozzle 18. The fuel 'mixture thus formed moves toward the nozzle 13, encounters the nut 1G which obstructs the passage in the pipe 9, and causes the fuel to be di rected outwardly against the heated walls of the pipe l() around the nut 16, thus increasing the velocity of the fuel and causing the particles of oil to be broken up or atomized. The same action occurs as the fuel passes around the washer 17, the fuel being further atomized and thence passing to the discharge end of the pipe where it is discharged against the washer 19 in the chamber 14 and allowed to impinge on the curved walls of such chamber and be still further atomized and vaporized before it is discharged through the horizontal discharge slot 21. The fuel, before it is discharged, is thus thoroughly atomized and mixed with air or steam so that it forms an inflammable gas that burns with a maximum efliciency and without producing an appreciable amount of soot or smoke.

The location of the washer 19 within the nozzle 13 is an important feature of this invention since when such washer is located as shown it forms a deiiector plate for the incoming fuel and by directing such fuel against the walls of the chamber 14 that is arranged at right angles to the pipe 10 produces a breaking up and atomizing eiect that can not be otherwise secured in this burner.

As hereinbefore explained, the burner operates under a low pressure of steam or air and hence does not produce the vibration and roaring noise common to this class of burners.

Obviously changes in the form of con struction and arrangement of parts embodied in this burner may be made within the scope of the following claims:

What I claim and desire to protect by Letters Patent is:

1. An oil burner of the class described, comprising a burner pipe provided with vapor and o1l inlet means, a nozzle on the end of said pipe, said nozzle having a cylindrical chamber and a horizontally disposed fuel discharge slot, a rod secured to said'nozzle and adapted to project rearwardly into said burner pipe in axial alinement therewith, washers of smaller diameter than said burner pipe adjustably secured on said rod within said burner pipe and a washer of substantially the same diameter as said burner pipe adjustably secured on said rod within said nozzle.

2. An oil burner of the class described comprising a burner pipe, a casing connected with onel end thereof, a vapor inlet pipe connected with said casing, a fuel inlet conductor having an open discharge end and disposed to passinto said casing and extend axially within said burner pipe, the portion of said fuel conductor within said burner pipe being of smaller diameter than said burner pipe, a nozzle on the end of said burner pipe, said nozzle having a cylindrically formed chamber disposed in a plane at right angles to said burner pipe and-being provided with a horizontal discharge slot, a rod secured toV said nozzle and adapted to project axially into said burner pipe, and a washer of substantially the same diameter as said burner pipe adjustably secured on said rod within said nozzle and adjacent the end of said burner pipe to serve as a deflector plate for fuel discharged into said nozzle.

3. An oil burner of the class described comprising a burner pipe provided with vapor and oil inlet means, a nozzle on the end of said burner pipe, said nozzle having a cylindrical chamber disposed at right angles to said burner pipe and being provided with a horizontal fuel discharge slot located opposite and slightly above the end of said burner pipe, a cylindrical washer of substantially the same diameter as said burner pipe and means connected with said nozzle for supporting said washer within said nozzle and in allnement with the end of said burner pipe to form a deflector plate for fuel that may be discharged into said nozzle.

el. An oil burner of the class described, comprising a casing having a chamber formed therein, a vapor inlet pipe connected with one end of said casing, a burner pipe connected with the other end of said casing, an integrally formed elbow member within said casing, a fuel supply pipe communicating with said elbow member, a fuel conductor pipe connected with said elbow and disposed to extend axially within said burner pipe, said fuel conductor pipe being of smaller diameter than said burner pipe to leave an annular passageway around Vthe outer walls thereof, a washer on the end of said fuel conductor pipe, a nozzle on the end of said burner pipe, said nozzlehaving a cylindrical chamber disposed at right angles to said burner pipe7 and being provided with a horizontally arranged discharge slot, a rod secured to said nozzle and adapted to pronozzle and adapted to deiieot fuel from said ject into said burner pipe in axial alinement burner pipe against the Walls of said nozzle therewith, a hexagonal nut on the end of before itis emitted from said nozzle.

said rod, a Washer adjustably secured Ine- EDWARD WILLIAM DISCHER. 5 dially of said rod and a Washer of substan- Witnesses:

tially the same diameter as said burner pipe E. C. PATTERSON,

adjustably secured on said rod Within said C. E. TAFT.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents, Washington, D. C. 

